For sale is a Huge Precision Grounded T-slotted Plate; 56x26x6.5" T-slots: top part - 3/4"; bottom part - 1-1/4"; depth - 1" Top and bottom surface looks very nice and smooth. This comes from a SUPER PRECISE PRATT AND WHITNEY JIG BORER: Click here to see it The borer was in an immaculate condition and even recently recalibrated. The table was found to have 0.0003" flatness or parallelism. This is not your cheaply made and abused T slot table, this is the CREAM OF THE CROP super nice t slot plate from a superprecision instrument. Highest grade cast iron, heavy ribbing throughout. An incredible find and unlikely to last long at this cheap price.